document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=150895>Question 150895</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Joe is 15 years older than Sally. in 15 years Joe will be 3 times as old as sally is now. How old is Sally? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #110829 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=110829\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let j be joe's age and s be sally's age.\r<BR>\n" );
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document.write( "Given <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j+=+s+%2B+15 ALIGN=MIDDLE  ALT=\"j+=+s+%2B+15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j+-+15+=+s ALIGN=MIDDLE  ALT=\"j+-+15+=+s\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Also given<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j%2B15+=+3s ALIGN=MIDDLE  ALT=\"j%2B15+=+3s\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Substituting from above yields<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j+%2B+15+=+3%28j+-15%29 ALIGN=MIDDLE  ALT=\"j+%2B+15+=+3%28j+-15%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=j+%2B+15+=+3j+-+45 ALIGN=MIDDLE  ALT=\"j+%2B+15+=+3j+-+45\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=60+=+2j ALIGN=MIDDLE  ALT=\"60+=+2j\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=30+=+j ALIGN=MIDDLE  ALT=\"30+=+j\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Joe is 30<BR>\n" );
document.write( "sally is 30-15 = 15\r<BR>\n" );
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document.write( " </SPAN>\n" );
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